Refrigerator door handle with cylinder door lock unit on the handle

ABSTRACT

The cylinder lock unit is mounted on the handle. It has adjustment features for rough as well as fine adjustment. A stud of appropriate length is used to take care of the thickness of the door. A setscrew on a locking cam takes care of micrometer adjustment for variations in door and gasket thickness. This handle and lock unit is for magnetic closure gasket-type refrigerator doors. The handle is fixed to the door by screws.

United States Patent [72] Inventor Irving L. Berkowitz Binghamton, N.Y.[21] Appl. No. 769,677 [22] Filed Oct. 22,1968 [45] Patented July 20,1971 [73] Assignee Kason Hardware Corporation Binghamton, N.Y.

[54] REFRIGERATOR DOOR HANDLE WITH CYLINDER DOOR LOCK UNIT ON THE HANDLE9 Claims, 8 Drawing Figs.

[52] US. Cl 70/207, 70/139, 70/362 51 int. Cl GOSg 5/26, EOSb 27/08,E05b 65/06 [50] Field of Search 70/ l 37, 139, 364, 366, 451, 362, 363,367, 369, 370, 371, 374, 375, 207, 208, 224, 215, 216, 217, 81, 135

[56] References Cited UNITED STATES PATENTS 1,449,187 3/1923 O'Connor70/207 X 1,662,773 3/1928 Albach 70/207 2,034,200 3/1936 North 70/2072,047,795 7/1936 North 70/81 X 2,602,318 7/1952 Belausteguigoita 70/2172,650,492 9/1953 Jacobi 70/362 2,804,765 9/1957 Biblin 70/362 3,009,34711/1961 George 70/216 Primary Examiner-Marvin A. Champion AssistantExaminerEdward J McCarthy Attorney-J. B. Felshin ATENTEU JUL 20 mmINVENTOR. IRVING L. BERKOWITZ "z nnnu[p- ATTORNEY PATENTEIJJULZOIBH3.593.550

SHEET 2 OF 2 INVENTOR. IRVING L. BERKOWITZ ATTORNEY REFRIGERATOR DOORHANDLE WITH CYLINDER DOOR LOCK UNIT ON THE HANDLE BACKGROUND OF THEINVENTION SUMMARY OF THE INVENTION An object of this invention-is toprovide'a door handle ofthe character described fixed to a door with acylinder lock unit mounted on the handle for locking thedoor. A furtherobject of this invention is to provide in'a construc tion of thecharacter described, a cylinder lock unit which is adjustable for doorsof various sizes and is also adjustable for small variations in thethickness of the door and door gasket.

A' still further object of this invention is to provide .a cylinder doorlock unit mounted on a'handle fixed tothe door, which is'so constructedthat fine adjustments can be made without necessity for removing thehandle from thedoor, to take care of fine variations in gasket or doorthicknesses, due to nonuniformity in manufacture.

Yet a further object of this invention is to provide a door lock andhandle construction of the character described in which a stud isreplaceable for a longer or shorter.stud,-to'take v care of thicker orthinner doors or large adjustment.

Another object of the invention is to provide a door handle lockconstruction which is adaptable for various types of keepers.

Still another object of this invention is to provide a strong, rugged,and durable door handle lock construction of the character describedwhich shall be relatively inexpensive to manufacture, easy to installand manipulate, and whichshall yet be practical and efficient to a highdegree in-use.

Other objects of this invention will in part be obvious and in parthereinafter pointed out. I

The invention accordingly consists in the features of construction,combinations of elements, and arrangement of parts which 'will beexemplified in a the construction hereinafter described, and of whichthe scope of inventionwill be indicated in the following claims.

In the accompanying drawing, in which areshown various illustrativeembodiments of this invention.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a perspective-exploded viewof a handle and cylinder lock unit embodying the invention;

handle fixed to a door on a doorjamb;

FIG. 3 is a cross-sectional view taken on line 3-3 of FIG. 2;

FIG. 4 is a cross-sectional view taken on line 4-.4 of FIG. 2;

FIG. 5 is a view similar to FIG. 1 but illustrating amodified form ofthe invention;

FIG. 6 is a vertical cross-sectional view of the upper end of the handleof FIG. 5 shown attached to a door, and with a cylinder lock unitassembled with said handle;

FIG. 7 is a cross-sectional view taken on line 7-7 of FIG. 6; and

FIG. 8 is a cross-sectional view taken on line 8-8 of F IG. 6.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now in detail toFIGS. 1 to 4 of the drawing, numeral 10 designates a door of arefrigerator or other cabinet, hinged thereto in any suitable manner andadapted to be closed against a gasket 11 fixed to a doorjamb 12. Fixedto the doorjamb l2 and located in a cutout in the gasket 11 is a keeper13. Said keeper 13 may have a leg 13a contacting the FIG. 2 is avertical cross-sectional view of one end of the 5 face 12a of thedoorjamb opposite to the inner face 10a of the door, and fixed theretoby a pair of screws 16; Extending from leg 13a toward face 10a is aportion l3bfrom which .an arm 13c projects upwardly. j

Fixed'to the outer surface 1050f door 10 is a handle '18 providedwith-means to be describedhereinafter, to engage the keeper I3forlocking the door. The handle1l8 comprises an elongated intermediatehandgrip portion 18a from the upper end of which extends an arm 18bcontacting outer surface 10b of the door, and from the lower end ofwhich extends an arm 18c contacting said surface 10b of the door. I

Arm 18c has a'n'outer flat vertical surface 19 contacting said surface10b and is formed with a horizontal threaded blind hole 20 to receivethe end of a screw 21 passing through a smooth hole 22 in the door. Thelower part of arm 18c may be hollow to reduce weight, as at 24,extending. partially around the hole 20.

The upper arm 18b has an outer surface 25 in the plane of surface l9 andis .formedvwith a screw-threaded opening 26, like opening 20,a nd with ahollow 28 like hollow,24. A screw, likesc rew 21'(not shown), passesthrough an opening, like opening 22, (not shown for screwing into saidopening 26 so thatsaid handle is fixed to the door by said screws.

The door 10 is formed with a through opening 30 below the upper surface31 of arm 18c. Arm 18c is of greater vertical height than arm 18b. Saidarm 18c is formed, above the hollow angular extent. Rotatably mounted inopening 40. and journaled by innersurfaces 41b of ribs 41a, is akey-actuated cylinder 45 of usual construction, havingaflange 46 at oneend disposed within countersink 42, a cylindrical portion 47 withinportion 41 of opening 40, and an axial stem 48 of square outercrosssection projected into portion 43 of said opening'Stem 48 is formedwithan axial screw-threaded blind opening 50 for the purpose hereinafterappearing. The key cylinder 45 is of usual construction. When the properkey is inserted, tumblers are drawn in and the key can turn the cylinderthrough an angle of 180. They key can be withdrawn when the cylinder istwo positions, I apart. When the key is,

withdrawn from the cylinder, the cylinder cannotbe rotated because thetumblers projectbetween the ribs 41a.

Opening 40, 43 is coaxial with opening 30 inthe door. Jour- I naled inopening portion 43 is a cylinder stop member 60. Member 60 hasan outercylindrical surface 61.

Member 60 has an opening .62 at one end of square cross section andreceives the stem 48. Atv its other end, said member 60 is formed withan internally screw-threadedopening 63 coaxialwith opening 62. Betweenthe openings 62 and 63 is an axial smooth opening 64. The member 60isformed near the outer endthereof with a radial screwed threaded.

opening 65 communicating with opening 63, to receive a setscrew 66. Saidmember60 is furthermore formed withan outwardly extending radial lug 67received in the arcuate groove 44. Member 60 is fixed to the cylinder 45by a screw 68 passing through the smooth opening 64 and screwed into thethreaded opening 50. The screw 68 has a head 70 contacting Y inner endof socket or opening 63. Thus the cylinder 45 and member 60 are heldtogether for concurrent rotation and one cannot move axially relative tothe other without first removing the screw 68. I

Screwed into the threaded opening 63 is an axial shaft or stud 71 havingfour equiangularly spaced flat surfaces 72-. One end of the stud 71 isscrewed into the opening 63 and said setscrew 66 may be screwed againstone of the flat surfaces 72 to prevent further rotation of the studrelative to member 60. The stud 71 projects beyond the opening 30.Screwed thereon is alocking cam member 74. Said member 74 has an axiallyinternally screwrthreaded opening 75 receiving said opposite end of thestud. Said member 74 is formed with a radial screwthread e d opening 76communicating with opening 75 to receive a setscrew 77 adapted tocontact one of the surfaces 74 of the stud 71. The opening 75 is a blindopening. At the outer end of member 74 is a keeper engaging outwardlyextending radial latch lug 78, When the key is turned to lockingposition lug 78 rotates into alignment with the inner side of arm 13c ofthe keeper [3.

The position of the locking cam 74 may be adjusted by loosening thesetscrew 77 and turning the cam member 74 to its desired longitudinalposition; Thereafter the setscrew 77 can again be tightened againstsurface 72 to hold thecam member 74 against rotation on the stud. Itwill be noted that the setscrew 77 is exposed when the door is open topermit fine adjustment of the cam member 74.

lt will now be observed that the handle l8 is fixed to the door and thatthe locking of the door is affected by a key.

It will be noted furthermore that the lug 67 is of such angular extentthat the cylinder can be rotated through an angle of 180. Thus thearcuate groove 44 is of an angular extent which equals 180 plus theangular extent of the lug 67.

In FIGS. to '8 there is shown a modified construction. In FIGS. 5 to 8the handle 18 may be the same as in FIGS. 1 to 4. However, the handle isreversed so that the arm 18c is at the top and the arm 18b is at thebottom. The handle is attached to the door in the same way as in FIGS. 1to 4. The cylinder 45ais also the same as in FIGS. 1 to 4 except thatinstead of having a square stem 48 it is formed with a stem 80 which hasa square portion 81 and a round portion 82. The stem 80 is formed withan axial-threaded opening 84 similar to the threaded opening 50.

Attached to the cylinder 45a is a member 86 having a cylindrical portion86a. At one end of portion 860 is a cylindrical portion 87 of increaseddiameter received in the portion 43 of the through opening 40. Saidportion 87 is formed with an arcuate radial lug 87a which is somewhatmore than 90 in angular extent and is received in groove 44 of thehandle. The angular extent of said lug 87a is such that the cylinder 45acan only move through an angle of 90. Member 86 is formed at one endwith an axial socket 88 of square cross section receiving the stem 80 ofthe cylinder 45a. Said member 86 is formed at its opposite end with anaxial socket 89. It is furthermore formed with a smooth axial throughopening 90 interconnecting the socket 89 with the socket 88. A screw 91passes through the opening 90 and is screwed into the threaded opening84 in the stem or extension 80 of the cylinder. The screw 91 has a head92 which is located at the inner end of the socket 89.

Member 86 has a longitudinal crankpin extension 93 offset from thesocket 89 and adjacent thereto.

Attached to door 10 by means of a pair of screws 94 is a lockingbarhousing 95. Said housing 95 comprises a wall 96 formed with a roundopening 97 into which one end of member 86 projects for rotation. At theupper and lower ends of wall 96 are horizontal walls 98 interconnectedby a wall 99 parallel to said wall 96. Wall 99 is not as wide as wall 96leaving exposed shoulders 98a at walls 98. The screws 94 pass throughsmooth parallel openings 100 at the upper and lower ends of housing 95.Screws 94 are screwed into the door 10 as shown in FIG. 6.

The pin 93 projects into the slot 101 between walls 96, 99. A lockingbar 102 of rectangular shape, is slidably received in slot 101. Said bar102 is formed with a vertical slot 103 near one edge, into which slotthe crankpin 93 projects. As the cylinder 45a is rotated through anangle of 90 in one direction the pin 93 slides the locking bar in onedirection to lock the door. The doorjamb has a keeper socket 105 toreceive the 106 to allow the door to be opened.

A radial plane through the axis of member 86 and through the axis of pin93 bisects the angle between the ends of lug 870, so that as thecylinder is rotated through an angle of 90,

the lock bar will move horizontally, and the pin 93 will move from oneside of a vertical plane through the axis of member 86 to the other sideof said plane and said pin will move through an angle of45 to each sideof said plane.

It will thus be seen that there is provided an article in which theseveral objects of this invention are achieved, and which is welladapted to meet the conditions of practical use.

As possible embodiments might be made of the above invention, and asvarious changes might'be made in the embodiments, above set forth, it isto be understood that all matter herein set forth is to be interpretedas illustrative only.

lclaim:

v I. A door handle, means to fasten said handle to a door, akey-actuated cylinder rotatably and nonslidably mounted on said handle,a member, meansto attach said member to said cylinder for rotationtherewith and to hold said member to said cylinder against longitudinalsliding movement relative thereto, and locking means actuable uponrotating said cylinder to lock the door to which the handle is attached,said attach means comprising-a noncircular stem fixed on said cylinder,said-member having a noncircular socket receiving said stem, and axialmeans on said member engaging said stem to hold said member and cylinderin axial alignment.

2. The combination of claim 1, and means to limit angular movement tosaid cylinder. 7

3. The combination of claim 2, said cylinder having a radial lug saidmeans to limit, comprising said radial lug on said cylinder and saidhandle having an arcuate groove in which said lug is received.

4. A door handle, meansto fasten said handle to a door, a key actuatedcylinder rotatably and nonslidably mounted on said. handle, amember,means to attach said member to said cylinder for rotation therewith andto hold said member to said cylinder against longitudinal slidingmovement relative thereto, and locking means actuable upon rotating saidcylinder to lock the door to which the handle is attached, said lockingmeans comprising a stud screwed at one end to said member, anothermember screwed to the other end of said stud, and a radial lug on saidanother member.

5. The combination of claim 4, said stud having one or more longitudinalflat faces, and setscrew means on said first mentioned member and onsaid another member adapted to engage a flat face of said stud.

6. The combination of claim 1, said locking means comprising an axialstud screwed to said member and another member screwed to said stud, andmeans on said another member to engage a keeper on a doorjamb' for thedoor to which said handle is fastened.

7. The combination of claim 4, said handle comprising a I

1. A door handle, means to fasten said handle to a door, a keyactuatedcylinder rotatably and nonslidably mounted on said handle, a member,means to attach said member to said cylinder for rotation therewith andto hold said member to said cylinder against longitudinal slidingmovement relative thereto, and locking means actuable upon rotating saidcylinder to lock the door to which the handle is attached, said attachmeans comprising a noncircular stem fixed on said cylinder, said memberhaving a noncircular socket receiving said stem, and axial means on saidmember engaging said stem to hold said member and cylinder in axialalignment.
 2. The combination of claim 1, and means to limit angularmovement to said cylinder.
 3. The combination of claim 2, said cylinderhaving a radial lug said means to limit, comprising said radial lug onsaid cylinder and said handle having an arcuate groove in which said lugis received.
 4. A door handle, means to fasten said handle to a door, akey actuated cylinder rotatably and nonslidably mounted on said handle,a member, means to attach said member to said cylinder for rotationtherewith and to hold said member to said cylinder against longitudinalsliding movement relative thereto, and locking means actuable uponrotating said cylinder to lock the door to which the handle is attached,said locking means comprising a stud screwed at one end to said member,another member screwed to the other end of said stud, and a radial lugoN said another member.
 5. The combination of claim 4, said stud havingone or more longitudinal flat faces, and setscrew means on said firstmentioned member and on said another member adapted to engage a flatface of said stud.
 6. The combination of claim 1, said locking meanscomprising an axial stud screwed to said member and another memberscrewed to said stud, and means on said another member to engage akeeper on a doorjamb for the door to which said handle is fastened. 7.The combination of claim 4, said handle comprising a handgrip portionhaving integral arms at its upper and lower ends, said arms havingcoplanar surfaces to contact the door to which the handle is fastened bysaid fastening means, and one of said arms having a through openingreceiving said cylinder.
 8. The combination of claim 7, said means tofasten said handle on a door comprising means extending through saidarms.
 9. The combination of claim 7, a doorjamb for said door, a keeperfixed to said doorjamb, and adapted to be engaged by said locking means.